Show and manipulate your system's ARP cache.
Send ARP packets to hosts (specified as IP addresses or hostnames) to scan the local network.
Show the current ARP table
arp
Show [a]lternative BSD style output format with on fixed columns
arp -a
[d]elete a specific entry
sudo arp -d address
[s]et up a new entry in the ARP table
sudo arp -s address mac_address